import type { TokenUsage } from '../types/run-result.js';
export interface RateCard {
    inputCostPerMTok: number;
    outputCostPerMTok: number;
    cachedReadCostPerMTok: number;
    cachedNonReadCostPerMTok: number;
}
export declare function resolveRateCard(model: string | null | undefined, override?: Partial<RateCard>): RateCard | null;
/**
 * Pure pricing — multiplies each token class by its rate. No defaults applied here.
 * Defaults live in resolveRateCard. reasoningTokens are folded into outputTokens
 * by each runner before emission, so there is no separate reasoning term.
 */
export declare function priceTokens(t: TokenUsage, r: RateCard): number;
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